Data product containing tree heights, survival, and genetic variation for "Genetic Variation in Ponderosa Pine: A 15-year Test of Provenances in the Great Plains"

Seeds from 79 natural stands throughout the ponderosa pine range, both east and west of the Continental Divide, were sown and grown in a nursery for three to four years in the 1960's. These seeds were then distributed to plantations, mostly in the Great Plains. This dataset contains the height of the surviving trees after 15 years for 14 plantations.
The study began in 1968 to determine the best seed provenances of ponderosa pine for use in protection plantings in the Great Plains of the United States. The data represent fifteen-year survival and height growth. The objectives of this study were to: 1) identifiy originals of superior performing seed sources; 2) determine the consistency of their performance across the range of plantations, and within regional groupings of plantations; and 3) determine how many years of data are necessary to detect reliable patterns in height growth.
Original metadata date was 10/04/2006. Metadata modified on 10/05/2012 to adjust citation to include the addition of a DOI (digital object identifier). Minor metadata updates on 02/28/2013, 10/27/2014, and 12/01/2016.